EKS cluster logging is not enabled

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Metadata

Id: 37304d3f-f852-40b8-ae3f-725e87a7cedf

Cloud Provider: aws

Framework: Terraform

Severity: Medium

Category: Observability

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Description

Amazon EKS control plane logging should be enabled to capture important events and API calls within the Kubernetes control plane. Without explicit configuration of the enabled_cluster_log_types attribute, as shown below, critical logs like API, audit, and authenticator events will not be sent to CloudWatch, making it difficult to monitor cluster activity or investigate potential security incidents.

enabled_cluster_log_types = ["api", "audit", "authenticator", "controllerManager", "scheduler"]

Compliant Code Examples

variable "cluster_name" {
  default = "example"
  type    = string
}

resource "aws_eks_cluster" "negative1" {
  depends_on = [aws_cloudwatch_log_group.example]

  enabled_cluster_log_types = ["api", "audit", "authenticator", "controllerManager", "scheduler"]
  name                      = var.cluster_name
}

Non-Compliant Code Examples

variable "cluster_name" {
  default = "example"
  type    = string
}

resource "aws_eks_cluster" "positive1" {
  depends_on = [aws_cloudwatch_log_group.example]
  name                      = var.cluster_name
}